Fitbit Charge 3, Heart Rate Monitor, Wireless Wellness 。Measures calorie 5f71df08ab62c56ae533ad59 resting heart rate 24 heart rate tracking battery life up to seven days choose from 15+ exercise modes automatically records time spent in light deep and ram sleeps so improve water resistant to 50 m. Stay connected to your daily life text and smart phone app notifications on your rest radio transmitter Bluetooth 4.1 Works perfectly comes with multiple bands , exercise ankle bands , charger Pictured. Face is in excellent condition with no scratches or brakes in glass.